I think movies can't be so upbeat with such destruction and obvious loss of life. Clark Kent smiling, Kirk and his crew excited about a new mission. Sure, events have passed but basically our heroes lost.

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"It's not that you can see the strings, it's that 40 years later you're still looking at them." - Steven Moffat
"This movie was big. Imagine how big it could have been with me in it?" William Shatner